title: [Causes of ineffectiveness of BCG vaccination and its impact on childhood tuberculosis].
abstract: In the last few years BCG vaccination has covered 97% of the newborns, but in 45% of them this vaccination proves to be low effective since no more than 2- or 3-mm long postvaccination cicatrix disappears by the 2-nd or 3-d year of their lives. The reasons of a low efficacy of BCG vaccination include inadequate BCG vaccination techniques, incomplete administration of the inoculation dose, etc. Cases of M. tuberculosis infection in children ineffectively vaccinated with BCG are 3 times more than among those effectively vaccinated and having postvaccination cicatrix.
authors.forename: V S
authors.initials: VS
authors.lastname: Ivan'kova
authors.forename: N F
authors.initials: NF
authors.lastname: Ivanova
mesh_terms: D001500:BCG Vaccine / Q000008:administration & dosage; D002648:Child; D002675:Child, Preschool; D005500:Follow-Up Studies; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D013997:Time Factors; D014376:Tuberculosis / Q000517:prevention & control*
chemical_list: D001500:BCG Vaccine
vernacular_title: Prichiny neéffektivnosti vaktsinatsii BTsZh i ee vliianie na tuberkulez sredi deteĭ.